So, I'm introducing a friend to PFS. He wanted to play an alchemist. He was very studious and read through the PFS Roleplaying Guild Guide. He then showed me his character, and asked how he gets his discount items when using "Brew Potion". I told him that feat wasn't legal for PFS, and that he should take "Extra Bombs" instead. He asked me where it said that in the rules. A perfectly reasonable question. I searched through the guide, first by eye, then by text search... nothing.
Then I went down the rabbit hole...
I finally found it in my old version 7.0 (year of the serpent) Guild Guide, under character creation Step 3: "Race and Class":
Alchemist: Alchemists receive the Extra Bombs feat at 1st level instead of Brew Potion.
So I checked version 10.0 (curent), under the same section:
For classes outside the Core Rulebook and for all archetypes, see the Additional Resources document regarding which are legal for play within the Roleplaying Guild, as well as the Campaign Clarifications document (paizo.com/pathfindersociety/rpg/clarifications) for alterations.
So, I went there (after manually typing the link, because the PDF has a broken link). It's not there either. Many, many Google searches with different parameters later and I can only conclude that the information has dropped off a cliff. An alchemist absolutely can't have Brew Potion, and for balance the feat needs to be replaced.
What hope does a new player have? Any chance this can be corrected on the website (and fix the link in the PDF)? I'm sure there are other omissions, too.